GB1410363A - Broadcast receivers - Google Patents
Broadcast receiversInfo
- Publication number
- GB1410363A GB1410363A GB5479672A GB5479672A GB1410363A GB 1410363 A GB1410363 A GB 1410363A GB 5479672 A GB5479672 A GB 5479672A GB 5479672 A GB5479672 A GB 5479672A GB 1410363 A GB1410363 A GB 1410363A
- Authority
- GB
- United Kingdom
- Prior art keywords
- station
- memory
- circuit
- output
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011159 matrix material Substances 0.000 abstract 5
- 229910052754 neon Inorganic materials 0.000 abstract 5
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 abstract 4
- 241001191009 Gymnomyza Species 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 150000002806 neon Chemical class 0.000 abstract 1
- 230000004044 response Effects 0.000 abstract 1
- HLXGRHNZZSMNRX-UHFFFAOYSA-M sodium;3-(n-ethyl-3,5-dimethylanilino)-2-hydroxypropane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(O)CN(CC)C1=CC(C)=CC(C)=C1 HLXGRHNZZSMNRX-UHFFFAOYSA-M 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/18—Automatic scanning over a band of frequencies
- H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
- H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers
- H03J7/285—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers the counter or frequency divider being used in a phase locked loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
- H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
- H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
- H03L7/185—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using a mixer in the loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Circuits Of Receivers In General (AREA)
- Superheterodyne Receivers (AREA)
Abstract
1410363 Automatic control SONY CORP 27 Nov 1972 [29 Nov 1971] 54796/72 Heading G3N [Also in Divisions H1 and H3] In a broadcast receiver comprising an input circuit 1-3 Fig. 1 for receiving radio signals, a local oscillator 1, a divider 9 and a counter 14, the preselected contents of the counter 14 is varied in accordance with the number of pulses received from a pulse generator 92a, Fig. 16 for varying the dividing ratio of the divider 9 in dependence on the contents of 14, a frequency and phase comparator 10 compares the output from the divider 9 with a reference signal 11 and a control circuit varies the local oscillator frequency in dependence on the output signal from the comparator 10. A circuit CTL connected between the input circuit and a memory 59 provides a pulse in response to the output signal from the input circuit and applies the pulse to the memory whereby the existence of received radio signals is memorized by the memory 59. The radio or TV receiver has RF amplifier, mixer and a local oscillator 1 having a variable capacity diode; an IF amplifier 2, an FM discriminator 3 a muting circuit 4 and a stereo multiplexer 5. The output frequency of the local oscillator 1 is fed via a mixer having a crystal oscillator 7, a divider 8 and a <SP>1</SP>/ N divider 9 to a frequency and phase comparator 10 which is also fed by a reference signal generator 11 via a divider 12. From the comparator 10 is obtained a direct voltage which is supplied as an oscillating frequency control voltage to the local oscillator 1. By changing the divide ratio N of the divider 9 FM waves with a frequency band are selectable. The divider 9 includes binary counters (11a, 11b, 11c,) Fig. 2, (not shown), a discriminator (15) and a gate (13) and the division ratio N is selected by a station select counter 14 including counters (14a, 14b, 14c). The contents of the station select counter 14 at (19a, 19b, 19c) are fed to a binary decimal decoder 20 the output of which feeds an RF indicator device 23 including indication tubes and feeds a matrix decoder 24. The binarydecimal decoder 20 and the matrix decoder 24 are described in detail Figs. 4A and 4B, (not shown). The matrix decoder 24 includes OR gate transistors (25) further described in Fig. 5 (not shown) and AND gate transistors (38) further described in Fig. 6 (not shown). The outputs from the matrix decoder 14 feed a lamp panel display 47 and a memory 59N. The lamp panel display 47 includes channel indicating elements such as neon lamps (L1-L70), Figs. 7 and 8 (not shown) and associated lamp push switches SW1...SW70. The neon lamps L1...L70 become ignited when the case made of glass and concerning each lamp is pushed. The state at which the switches SW1...SW70 are in the on condition is detected by a station select circuit (48) Fig. 9 (not shown). The memory 59N includes a 70 bit memory matrix having variable threshold MAOS FET (Q1...Q70) Fig. 12 (not shown) and is controlled by a memory control circuit (63) Fig. 13 (not shown) which has write, read and memory select switches (67a, 67b, and 67m). A control circuit CTL has self-light emitting buttons (87a-87e) Figs. 14 and 15 (not shown) for controlling the tuning and (88a-88e) for controlling the memory 59N. A control circuit for station search mode Fig. 16 includes a control button 88e, a monostable delay circuit 90, a flipflop 91, a station pulse generator 92a, a station search circuit 93 and a monostable write signal generator 101. The station search circuit 93 includes a D.C. level detector (95) Fig. 18 (not shown) fed from the output of the FM discriminator 3 and AND gate 96 fed from a muting control signal obtained by rectified output of the IF amplifier 2. The output from the level detector (95) feeds the AND gate (96) the output from which feeds an integration circuit (98). Operation of station search button 88e causes pulses to be generated by station pulse generator 92a which operates the station select counter 14 to scan through the RF range whereon the circuit is reset. If the receiver is in the tuned condition the pulse generator 92a is momentarily stopped so that the neon lamp in the panel display 47 corresponding to the tuned frequency is ignited for a longer period. When a station is present the memory 59N is written in succession. A scan mode circuit indicating all of the stations received in the FM band with the aid of the panel display 47 which only ignites the lamps corresponding to these stations is disclosed Fig. 21 (not shown). This scan mode circuit includes a station pulse generator (92b) a memory output discriminator (103) and a memory output delay circuit (104). A station may be selected by pushing the neon lamp corresponding to that station so that the scanning is stopped when this neon lamp is ignited. A control circuit relating to shift and step modes is disclosed Fig. 23 (not shown) which includes station pulse generators (92c, 92d, 92e) and a repeat monostable signal generator (92f). When a button (87b) is pushed the frequency changes to the next station. When a button (87c) is pushed the next tuning scan is affected at a given time without pushing the other buttons. When a button (87d) is pushed the frequency is shifted at a constant speed. When a button (87e) is pushed the frequency changes in a step manner. Another memory 59P similar to the memory 59N may be used for storing the desired stations beforehand.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9605671A JPS555729B2 (en) | 1971-11-29 | 1971-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1410363A true GB1410363A (en) | 1975-10-15 |
Family
ID=14154775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5479672A Expired GB1410363A (en) | 1971-11-29 | 1972-11-27 | Broadcast receivers |
Country Status (8)
Country | Link |
---|---|
US (1) | US3845394A (en) |
JP (1) | JPS555729B2 (en) |
CA (1) | CA1008571A (en) |
DE (1) | DE2258246C2 (en) |
FR (1) | FR2162067B1 (en) |
GB (1) | GB1410363A (en) |
IT (1) | IT971353B (en) |
NL (1) | NL178044C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4313213A (en) | 1978-06-26 | 1982-01-26 | Italiana S.P.A. Indesit Industria Elettrodomestici | Computer controlled television receiver with display |
Families Citing this family (65)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5325721B2 (en) * | 1973-11-07 | 1978-07-28 | ||
NL7414564A (en) * | 1973-11-16 | 1975-05-21 | Int Standard Electric Corp | RADIO OR TELEVISION RECEIVER WITH A CHANNEL SEARCHER. |
JPS587090B2 (en) * | 1973-11-22 | 1983-02-08 | ソニー株式会社 | receiving device |
JPS5421049B2 (en) * | 1973-12-28 | 1979-07-27 | ||
US3931579A (en) * | 1974-04-01 | 1976-01-06 | Zenith Radio Corporation | Digital signal seeking tuning system |
US3961261A (en) * | 1974-03-14 | 1976-06-01 | Tennelec, Inc. | Crystalless scanning radio receiver |
JPS5517548Y2 (en) * | 1974-03-20 | 1980-04-23 | ||
US3946319A (en) * | 1974-05-03 | 1976-03-23 | Zenith Radio Corporation | All electronic digital tuner system with memory |
JPS5415164B2 (en) * | 1974-05-20 | 1979-06-13 | ||
JPS5439937Y2 (en) * | 1974-05-27 | 1979-11-26 | ||
US3883807A (en) * | 1974-05-30 | 1975-05-13 | Motorola Inc | Tuning control system |
JPS5346601B2 (en) * | 1974-06-08 | 1978-12-15 | ||
JPS50158208A (en) * | 1974-06-10 | 1975-12-22 | ||
US3956702A (en) * | 1974-07-01 | 1976-05-11 | Zenith Radio Corporation | Band decoder for all-channel digital tuning system |
JPS5637728B2 (en) * | 1974-07-05 | 1981-09-02 | ||
US3971991A (en) * | 1974-09-04 | 1976-07-27 | Zenith Radio Corporation | Television tuning system with varactor malfunction detection |
US3968440A (en) * | 1974-09-25 | 1976-07-06 | Texas Instruments Incorporated | Solid state television channel selection system |
GB1521900A (en) * | 1974-09-25 | 1978-08-16 | Texas Instruments Inc | Radio set tuning system |
US3968443A (en) * | 1974-09-25 | 1976-07-06 | Texas Instruments Incorporated | Solid state television channel selection system |
US3968444A (en) * | 1974-11-11 | 1976-07-06 | Texas Instruments Incorporated | Skip band tuner |
US4123715A (en) * | 1975-01-30 | 1978-10-31 | Masco Corporation Of Indiana | Program apparatus for radio receiver using frequency synthesizer |
JPS5513616B2 (en) * | 1975-02-06 | 1980-04-10 | ||
US4013957A (en) * | 1975-04-26 | 1977-03-22 | Kanda Tsushin Kogyo Co., Ltd. | Channel-selecting apparatus for a multichannel transceiver |
JPS51135310A (en) * | 1975-05-19 | 1976-11-24 | Nippon Telegr & Teleph Corp <Ntt> | Local oscillator for multi-channel |
JPS51137312A (en) * | 1975-05-23 | 1976-11-27 | Trio Kenwood Corp | Automatic channel selection device |
US4081752A (en) * | 1975-05-30 | 1978-03-28 | Sanyo Electric Co., Ltd. | Digital frequency synthesizer receiver |
US3962644A (en) * | 1975-05-30 | 1976-06-08 | Tennelec, Inc. | Crystalless scanning radio receiver controlled by processing means |
US4110694A (en) * | 1975-10-10 | 1978-08-29 | Warren A. Sturm | Channel number interface |
US4023107A (en) * | 1975-10-14 | 1977-05-10 | Zenith Radio Corporation | Sequential channel tuning system with a memory |
IT1047373B (en) * | 1975-10-16 | 1980-09-10 | Indesit | ARRANGEMENT FOR SELECTING A RECEIVABLE FREQUENCY IN A SIGNAL RECEIVER |
JPS5712608Y2 (en) * | 1975-10-21 | 1982-03-12 | ||
IT1073074B (en) * | 1975-11-14 | 1985-04-13 | Rca Corp | TELEVISION FREQUENCY SYNTHESIZER, FOR NON STANDARDIZED FREQUENCY CARRIERS |
US4048672A (en) * | 1976-01-05 | 1977-09-13 | T-Bar Incorporated | Switch matrix control and display |
US4147987A (en) * | 1976-01-19 | 1979-04-03 | Sanyo Electric Co., Ltd. | Superheterodyne receiver of scanning type |
US4024476A (en) * | 1976-02-02 | 1977-05-17 | Rca Corporation | Programmable frequency divider for a television receiver frequency synthesizer |
JPS5946129B2 (en) * | 1976-04-05 | 1984-11-10 | ソニー株式会社 | Channel selection device |
NL7607257A (en) * | 1976-07-01 | 1978-01-03 | Philips Nv | TELEVISION RECEIVER WITH A FREQUENCY SYNTHESIS TUNING. |
DE2629606C2 (en) * | 1976-07-01 | 1983-08-18 | Braun Ag, 6000 Frankfurt | Quasi-analog display of channels in radio receivers |
US4063179A (en) * | 1976-07-21 | 1977-12-13 | Craig Corporation | Channel selector for a scanning monitor receiver |
US4287599A (en) * | 1976-08-02 | 1981-09-01 | Motorola, Inc. | Multi-channel communication device with manual and automatic scanning electronic channel selection |
JPS5350908A (en) * | 1976-10-20 | 1978-05-09 | Sanyo Electric Co Ltd | Broadcast receiving memory unit |
JPS5380108A (en) * | 1976-12-24 | 1978-07-15 | Fujitsu Ten Ltd | Automatic channel selecting receiver |
JPS588771B2 (en) * | 1977-01-25 | 1983-02-17 | 三洋電機株式会社 | Preset tuner |
IT1071553B (en) * | 1977-02-02 | 1985-04-10 | Indesit | REGULATION CIRCUIT |
US4093921A (en) * | 1977-03-17 | 1978-06-06 | Texas Instruments Incorporated | Microcomputer processing approach for a non-volatile TV station memory tuning system |
US4093922A (en) * | 1977-03-17 | 1978-06-06 | Texas Instruments Incorporated | Microcomputer processing approach for a non-volatile TV station memory tuning system |
US4236182A (en) * | 1977-04-30 | 1980-11-25 | Sharp Kabushiki Kaisha | Automatic pre-programming system for TV receivers |
JPS54808A (en) * | 1977-06-03 | 1979-01-06 | Pioneer Electronic Corp | Electronic tuning receiver |
US4123713A (en) * | 1977-06-28 | 1978-10-31 | Rca Corporation | Memory type tuning system with provisions to facilitate setup |
US4179661A (en) * | 1977-07-28 | 1979-12-18 | General Electric Company | Circuit for programming the search circuit of a radio receiver |
DE2758034A1 (en) * | 1977-12-24 | 1979-06-28 | Licentia Gmbh | Radio receiver with electronic memory for individual transmitters - has matrix shaped indicator panel, with individual indication positions allocated each to separate transmitter |
US4245349A (en) * | 1977-12-29 | 1981-01-13 | Nippon Gakki Seizo Kabushiki Kaisha | Automatic frequency scanning radio receiver |
IT1091632B (en) * | 1977-12-30 | 1985-07-06 | Indesit | CIRCUITARY ARRANGEMENT TO TUNE A SIGNAL AMONG A MULTIPLE OF RADIOELECTRIC SIGNALS |
US4287600A (en) * | 1978-03-03 | 1981-09-01 | Motorola, Inc. | Frequency synthesizer with ROM controlled divider and display |
AU4953979A (en) * | 1978-08-16 | 1980-02-21 | Sony Corporation | Receiver tuning with frequency synthesizer |
US4280199A (en) * | 1979-08-03 | 1981-07-21 | Sony Corporation | Apparatus for scanning an addressable memory |
JPS58169730U (en) * | 1982-05-07 | 1983-11-12 | アルパイン株式会社 | radio receiver |
JPS58169729U (en) * | 1982-05-07 | 1983-11-12 | アルパイン株式会社 | radio receiver |
US4641190A (en) * | 1985-05-10 | 1987-02-03 | Rca Corporation | Muting system |
FR2639499A1 (en) * | 1988-11-23 | 1990-05-25 | Oceanic Sa | programme selection control device (remote control), especially for a television set and television programme playback units containing such devices |
US5262769A (en) * | 1990-04-23 | 1993-11-16 | Reach Electronics, Inc. | Programmed scanning pager receiver |
JPH0548658U (en) * | 1991-12-09 | 1993-06-29 | 泰東製綱株式会社 | Marine organism adhesion prevention device |
JPH1020384A (en) | 1996-07-03 | 1998-01-23 | Nikon Corp | Function display device |
US6674993B1 (en) * | 1999-04-30 | 2004-01-06 | Microvision, Inc. | Method and system for identifying data locations associated with real world observations |
US7565541B1 (en) | 2000-06-21 | 2009-07-21 | Microvision, Inc. | Digital fingerprint identification system |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US25660A (en) * | 1859-10-04 | Hydrant | ||
US25599A (en) * | 1859-09-27 | Hand-punch | ||
US3129418A (en) * | 1960-08-04 | 1964-04-14 | Teledyne Inc | Electronic keyboard |
US3244983A (en) * | 1963-03-06 | 1966-04-05 | Gen Dynamics Corp | Continuously tunable direct reading high frequency converter |
US3394356A (en) * | 1965-04-19 | 1968-07-23 | Ibm | Random access memories employing threshold type devices |
GB1263928A (en) * | 1968-06-27 | 1972-02-16 | Plessey Co Ltd | Improvements in or relating to frequency synthesisers |
JPS5034181B1 (en) * | 1969-12-13 | 1975-11-06 | ||
US3665318A (en) * | 1970-03-18 | 1972-05-23 | Regency Electronics | Radio receiver |
US3714585A (en) * | 1971-02-17 | 1973-01-30 | Regency Electronics | Scanning radio having rapid channel skipping capability |
JPS5129368A (en) * | 1974-09-05 | 1976-03-12 | Daikin Ind Ltd |
-
1971
- 1971-11-29 JP JP9605671A patent/JPS555729B2/ja not_active Expired
-
1972
- 1972-11-27 US US00309803A patent/US3845394A/en not_active Expired - Lifetime
- 1972-11-27 GB GB5479672A patent/GB1410363A/en not_active Expired
- 1972-11-28 DE DE2258246A patent/DE2258246C2/en not_active Expired
- 1972-11-28 CA CA157,642A patent/CA1008571A/en not_active Expired
- 1972-11-29 FR FR7242440A patent/FR2162067B1/fr not_active Expired
- 1972-11-29 IT IT32260/72A patent/IT971353B/en active
- 1972-11-29 NL NLAANVRAGE7216214,A patent/NL178044C/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4313213A (en) | 1978-06-26 | 1982-01-26 | Italiana S.P.A. Indesit Industria Elettrodomestici | Computer controlled television receiver with display |
Also Published As
Publication number | Publication date |
---|---|
FR2162067B1 (en) | 1977-04-22 |
NL178044B (en) | 1985-08-01 |
IT971353B (en) | 1974-04-30 |
JPS4860510A (en) | 1973-08-24 |
NL7216214A (en) | 1973-06-01 |
FR2162067A1 (en) | 1973-07-13 |
NL178044C (en) | 1986-01-02 |
JPS555729B2 (en) | 1980-02-08 |
US3845394A (en) | 1974-10-29 |
CA1008571A (en) | 1977-04-12 |
DE2258246C2 (en) | 1985-07-11 |
DE2258246A1 (en) | 1973-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19921126 |